September 2014 archive

Metals in News

Scientific Vocabulary:

Effluents- Gas or water outflowing from a body of water; Decontamination- Removing contaminating substances like poisonous gas and radioactive metal; Contaminant- Something that makes a substance or a place unusable.

This articles is about how scientists found out that onions and garlics can be used to clean heavy metals in contaminant materials.

The science used in this article is that onions and garlics can be used to remove toxic elements like arsenic, cadmium, iron, lead etc… from contaminant materials. The researchers from the GGS Indraprastha University studied about the influence of pH, contact time, concentration, and the temperature of different types of metals that are present on the cleanup process. As a result, they found out that the efficiency of the cleanup process is largely dependent on the pH at the temperature at 50°celsius. During the process, the team was able to extract more than 10 milligrams of metals per gram of Allium material from a test solution which contained 5 grams per liter of mixed metal ion solution. This amounted to recovery efficiency for more than 70 percent. Using the nitric acid and the biomass reused, the absorbed metals were released into a collecting vessel.

Economically, this can affect the world because before knowing this, heavy metals in contaminant materials (Eg, dioxin, sulfur oxide, and nitrogen oxide) couldn’t be cleaned in an easy way. For example, machines may be used and it costed a lot. However, by knowing that onions and garlics can clean heavy metals in contaminant materials, it won’t take money and we can save time for removing toxic elements. Heavy metals can be a problem because it can cause pollution and it can be poisonous and if we remove them we can prevent pollution happening and also worrying about poisonous metals.

I think this science is beneficial because we can get onions and garlics easily in shops and we can use the waste we got from eating them or using it for cooking. This can make a benefit for us by saving money and also getting the materials easily so that we can research more and find new answers for the questions we have right now more productively.

“Contaminant.” Merriam-Webster. Merriam-Webster, n.d. Web. 29 Sept. 2014.
“Decontamination.” Wikipedia. Wikimedia Foundation, 27 Sept. 2014. Web. 29 Sept. 2014.
“Effluent.” Wikipedia. Wikimedia Foundation, 24 Aug. 2014. Web. 29 Sept. 2014.
“Onion Waste Cleans Up Heavy Metals, Study.” Asian Scientist Magazine Science Technology and Medicine News Updates From Asia RSS. Inderscience Publishers, 12 Dec. 2012. Web. 22 Sept. 2014.


Yume no Wa Practice 9-29-2014

I chose to practice the first part in the video (0:05~0:35) because I sometimes mess up. For example, I sometimes play 「九」between 「十」&「八」eventhough, there aren’t any in the first two measures. Also, I sometimes forget to press for 「斗」for second line measure 1. My goal for today’s practice was to play the part without forgeting to skip 「九」and press for 「斗」. To play this part successfully, I needed to memorize how many times each pattern repeats.

I chose to practice the second part in the video (0:36~1:06) because when we play it fast, I can’t play it well and I sometimes skip some strings. I also sometimes play a different string with my left hand. I wanted to play this part in the correct rhythm and play it fast without making mistakes until the end of today’s practice. To play this part successfully, I played it slowly at first and gradually played it faster.

Overall, I think I did well on practicing the piece. Especially, the second part because now I can play it fastly. I think by practicing, I can memorize the piece a little by little.

Metal poster Reflection

The three things I would focus on next time is:

  • To read the question more and site the sources correctly.

I didn’t read the document correctly so I had the MLA in a different place. If I read the document more correctly, I think I would have a better grade and can improve my work. Also, I didn’t know that I needed to site the MLA in alphabetical order too.

  • Read the TSC.

I didn’t read the TSC so I didn’t really know what to do. By reading the TSC I would know what to do and by reading it before the due date, I can make my work better and check it over again.

  • Have more detail in my work.

I didn’t really use scientific vocabulary even though I learned it. By using the vocabulary, it would be more easier to tell what I want to say to the reader/teacher. It would also be useful to explain the information I researched.

Yume no Wa Practice 9-21-2014

I chose to practice the first part in the video (0:05~0:24) because it was quite hard for moving my left hand when I’m moving my right hand. My goal for today’s practice was to play the part smoothly without messing up the rhythm and my hand. To play this part successfully, I needed to memorize the left hand so I can concentrate on moving my right hand at the right tempo. The right hand has a continuous rhythm, but if I don’t concentrate, I mess up the tempo and it won’t match the melody I’m playing with my left hand.

I chose to practice the second part in the video (0:25~0:44) because I couldn’t play the part in the correct way. I messed up with the tempo and the rhythm. I wanted to play this part correctly and play it in both fastly and slowly by the end of today’s practice. First, I watched this video. The part I watched is from 1:54~2:18. This part is the part I was focusing on. After I watched it 5~6 times, I remembered the rhythm. After that, I played it on the koto several times. Finally, I played the part on the koto while watching the video.

Overall, I think I did a good job on practicing the piece. Especially the two parts I focused on. I was able to play the two parts before, however, by focusing on those parts, I think I became better at playing it because now I can play it in the correct rhythm. Also, I memorized the two parts by playing it. The goal for my next class (in school) is to be able to play the piece (up to page 7) without stopping and making mistakes.


Stereotype is when you group people together and make judgements without knowing them. Examples of stereotypes are:

  • Babys are cute
  • Boys like playing sports
  • Polices are brave

Stereotype is useful when you want to extend the way you play the role. However, it can make people feel bad if the role you play is what they are but how you play it isn’t true for them. For example, if you play the role teacher, and in the audience there is a person whose job is a teacher. You might act the role by being scary and scolding your students but the way the teacher in the audience teaches students in the opposite way which is being nice to students. By acting it in a wrong way you can give a bad impression for occupation, gender, races etc… to the world.

Why can’t you judge a book by it’s cover?

This is a quite famous phrase. This means that you can’t judge anything without knowing the inside. You can’t judge a book by it’s cover because maybe the drawing on the cover looks boring but maybe the story might be interesting. It might be the opposite too. You also can say that you can’t judge people by how they look. Maybe someone might be pretty but doesn’t have a good personality. In the opposite way, someone might be bad looking but they might be nice and can have a good personality.

For example, maybe there might be a police that isn’t brave. There might be a math teacher that can’t solve hard questions.